Write about updates on release note

_posts/2013-12-29-release.md

@@ -16,10 +16,30 @@ Are you interested in Droonga? See [overview](/overview/). It describes more det
 
 The current Droonga version is 0.8.0. This is the first stable release.
 
-Although the current Droonga provides basic core features, many other features aren't implemented yet. Error handling are also not perfect yet.
+The release comes with the following updates:
+
+### Improvements
+
+* [fluent-plugin-droonga] Merge column value of records which have same key
+* [fluent-plugin-droonga] Support groupBy for `search` (FIXME: I'm note sure about this...)
+* [fluent-plugin-droonga] Use UNIX domain socket to communicate with workers instead of queues implemented as Groonga's special tables. This prevents queue destruction problem after fluent-plugin-droonga crashed and improve the portability. It also reduces the time required for graceful shutdown.
+* [fluent-plugin-droonga] Fix duplicated notification problem of watch in case of multiple-attributes are matched (experimental feature)
+* [fluent-plugin-droonga] Make watcher sweepable (experimental feature)
+* [droonga.org] Introduce i18n mechanism
+* [droonga.org] Improve documentations by writing and translating documents
+* [drntest] Suppress parse error for something other than JSON is returned from droonga
+* [drntest] Rename `--base` option to `--basepath`
+
+### Fixes
+
+* [fluent-plugin-droonga] Fix problem with limit/offset calculation
+
+
+## Are you interested?
 
 If you are interested in Droonga, try Droonga! If you have questions, please contact us on [GitHub issues](https://github.com/droonga/fluent-plugin-droonga/issues/). Or use mailing list [in English (groonga-talk)](https://lists.sourceforge.net/lists/listinfo/groonga-talk) or [in Japanese (groonga-dev)](http://lists.sourceforge.jp/mailman/listinfo/groonga-dev). We will help you.
 
+Although the current Droonga provides basic core features, many other features aren't implemented yet. Error handling are also not perfect yet.
 Droonga project continues to develop Droonga actively and release a new version every month.
 
 ## Conclusion